linux/tools/perf/util/intel-pt-decoder
Adrian Hunter 347a7389a7 perf intel-pt: Add support for decoding PSB+ only
A single q option decodes ip from only FUP/TIP packets. Make it so that
repeating the q option (i.e. qq) decodes only PSB+, getting ip if there
is a FUP packet within PSB+ (i.e. between PSB and PSBEND).

Example:

 $ perf record -e intel_pt//u grep -rI pudding drivers
 [ perf record: Woken up 52 times to write data ]
 [ perf record: Captured and wrote 57.870 MB perf.data ]
 $ time perf script --itrace=bi | wc -l
 58948289

 real    1m23.863s
 user    1m23.251s
 sys     0m7.452s
 $ time perf script --itrace=biq | wc -l
 3385694

 real    0m4.453s
 user    0m4.455s
 sys     0m0.328s
 $ time perf script --itrace=biqq | wc -l
 1883

 real    0m0.047s
 user    0m0.043s
 sys     0m0.009s

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20200710151104.15137-13-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2020-08-06 09:02:43 -03:00
..
Build perf intel-pt: Use shared x86 insn decoder 2019-08-31 22:27:52 -03:00
intel-pt-decoder.c perf intel-pt: Add support for decoding PSB+ only 2020-08-06 09:02:43 -03:00
intel-pt-decoder.h perf intel-pt: Add support for decoding FUP/TIP only 2020-08-06 09:02:14 -03:00
intel-pt-insn-decoder.c perf intel-pt: Use shared x86 insn decoder 2019-08-31 22:27:52 -03:00
intel-pt-insn-decoder.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
intel-pt-log.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
intel-pt-log.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
intel-pt-pkt-decoder.c perf tools: Remove unneeded semicolons 2020-04-30 10:48:32 -03:00
intel-pt-pkt-decoder.h perf intel-pt: Add new packets for PEBS via PT 2019-06-17 15:57:17 -03:00